Sash ventilator



y 1949. 7E. e. DAVIS 2,470,433

'SASH VENTILATOR Filed Aug. 6, 1947 N V EN TOR.

Patented May 17, 1949 U N 1 TE D STATES NT ICE F1 SASH' VENTILATOR Edgar G. Davis, Detroit, Mich.

-' Application August 6, 1947, Serial No; 766.671

6 Claims. 1

This inventionprelates'towindows wherein-the sash raises upwardly within theframerand: has for its object to providesimplewand, efi'ective means whereby the window 'may be: opened to some extentfor the purpose of 'ventilationiand at the same time the resulting opening screened against thexingress of :rain' morecparticularly.

A further object: is .to provide an arrangement of slats adapted to :be trappedzin a small space between the window sash sand. its :sill 1' inx closed position," but to: be extendedxin venetian. blind form when'the windowitis opened With...the said slats then assuming a-downwardlyiandnutwardly slantedv position in vertically Tspaced relationfto one another.

vA still furthers: object is :toj'. :provide* such :an

arrangement'of slats ibeneathithe sash :of a vertically slida'ble window wherein the raisingland :spacing of the slats F upon L the:- ropeningr 10f: .the

window .is effected 'by vrodsipassing through the slats and provided withabutmentsitadapted to pnogressively engageathe sl'ats'oneiafter the :other as the window sash is raised.

Still further objects or advantages: additional or subsidiary to the aforesaidhobjects; or resulting from the'honstru'cti'on :or. operationwoffthe invention as itumaybe carried"intofleffecty-"will vbecome apparent as-the saidfinventi'on is hereinafter further disclosed.

" Incarrying the saidinvention'into effect, I'may adopt the novel constru'ction and arrangement of parts hereinafter describedg by way "of example, having reference tol'the accompanyin drawing', wherein:

Figure 1 is a fragmentaryelevtttionoi a'window frame and sash embodying the said'inventiom'the sash being illustrated in its open ventilating position;

Figure 2 is a verticals'ectionof the same, taken z'on. aiplaneaindicated by'th'e.. 1-ine 2-12 inFigure 1;

Figure 3 is a similar view to Figure 2, on alarger scale, showing the sash in- :an intermediate position of opening wherein the slats or louvers are progressively assuming theirscreening position; .7

Figure '1' is a detail viewof one of theslatsupporting'rods or guides removed from the sash, the slats bein indicated in broken lines;

Figure 5 is a similar elevation of the said rod, taken at right angles to the view Figure 4, a single slat being indicated in broken lines;

Figure 6 is a fragmentary edge elevation of the slats in their closed position;

Figure 7 is a plan of the same; and

Figure 8 is a detail cross section of the window openings.

Similar characters: of-reference vindicatesimilar parts in the several figures of the drawing.

til indicates the frameof. a window having the lower sill ll andslidingsashdZ, andproiecting downwardly from the lower "rail of the -said sash are two rods I3. These rods 13 areco-axial with openings M provided in the-said sill H-, the'wall of each openin being slotted :as at :l 5 in key hole fashion.

16, ll; l8, l9 and-ifl'arethin slats, preferably of rust-proof metal, each having apairwoflholes 2 I therein through which r the arods 1 l3 '-pass, the said slats being of a width andPlength-approximating the thickness and width; -respectively; :of the lower rail'of the saids'ash12.

The holes 2| 'ofthe slats 19,48;:l'l 'andlli are each provided with progressively deeperkeyways 22, 23, 24 and '25-, respectively,- as-shown' inFigure 7, and the said rods l3 are -provided'with vertically spaced'studs or projections it; 21; 2B,

29 and-'30 of progressively increasing length as shown. in Figure 4. These studs or projections are positionedon t'hersaid rods s0 that they-extend inwardly c-fthe window toward'the interior" of the room in which the window is' installed.

It will be quite clear that the h'oles 2l'iof the uppermost slat 20, havin no key wayfwill not permit'the saidslat Zll to pass downwardly over "the rods 'I3'beyond the projections 26;"whereas xthe slat-'lflydue to the limited key way. 22i'may 'pa'ss downwardly beyond the projection '26 'but will be arrested by the-somewhat longer projection 21. Inna similar mann'er the "slat 16*may pass downwardly beyond all. the-projections 26, 21; 28 and 29'to be arrested :by the longestprojection 30. The intermediate slats will-be arrested by 1 the I intermediate projections; :in the manner shownin Figure 4; according to the depth oftheir key ways.

' Thus; when the window-is raised'itoi the extent shown in Figure 1;-thewslats :16 to 2lh inclusive, will assume? the screening position-shown in Figures 1, 2 and 4 wherein-they slantidownwardly and outwardly of the window inspaced :relation to one another; in the manner-oi a Venetian blind, to permit the ventilating flow of air therethrough into the room and to act as battles in resisting the entrance of rain into the room beneath the partially opened sash.

When the window is closed the several slats, by reason of their key ways, permit the passage of the rods freely downwardly therethrough into the openings l4 provided in the window sill (the studs 26 to 30, inclusive, passing through the clearance slots l5 provided for that purpose) and the slats are accordingly trapped in face-to-face abutment between the surface of the sill H and the under side of the sash l2. In this position, due to their thinness, they may occupy a minimum of space so that the sash is merely elevated to a slight extent above its normal closed .position and any catch or other device which may be provided for locking the sash can be easily adjusted or repositioned to operate under such conditions.

Where the slats are of considerable length, as in the case of wide windows, I may provide further rods, such as at 3|, passing through suitably provided holes in the slats for additional guidance and support of the said slats, and such rods need not necessarily be provided with steps or abutments such as the projections to inclusive, previously referred to.

To ensure that the slats, when they are collapsed together, assume a proper position on their rods for eventual operation to their open or raised position, I prefer to provide the lowermost slat on its under side and towards its outer edge w a small spring leaf or resilient abutment 352, especially where the window sill slops downwardly and outwardly as is usually the custom. This leaf 32, while admitting of compression to permit the slats to assume substantially the angle of the window sill when compressed together in closed position, serves, as the slats are closed upon one another, to raise the outer edges of the slats and thus level the said slats in the manner shown in Figure 3; and it also tends to maintain the slats in a position of maximum inward placement of the window so that the slotted ends of the openings 2| are properly positioned above the projections 26 to 30 to ensure a proper engagement of the said projections with the several slats as the window is opened.

This invention may be developed within the scope of the following claims without departing from the essential features of the said invention,

and it is desired that the specification and drawing be read as being merely illustrative of a practical embodiment of the same and not in a strictly limiting sense.

What I claim is:

1. In combination with a window frame having a sill and a vertically sliding sash, a plurality of slats arranged in face-to-face abutment between the lower rail of said sash and said sill in the closed position of said sash, a plurality of rods depending from said sash through said slats and into said sill, said rods being provided with means for progressively raising said slats into vertically spaced relationship as said sash is raised, said means supporting said slats in outwardly and downwardly slanting position when the sash is so raised.

2. In combination with a window frame having a sill and a vertically sliding sash, a plurality of slats arranged in face-to-iace abutment between the lower rail of said sash and said sill in the closed position of said sash, a plurality of rods depending from said sash, and stepped abut- 4 ments on said rods for progressively engaging and raising said slats into vertically spaced relationship as said sash is raised.

3. In combination with a window frame having a sill and a vertically sliding sash, a plurality of slats arranged in face-to-face abutment between the lower rail of said sash and said sill in the closed position of said sash, said slats having a plurality of matching orifices therein, rods depending from said sash through said orifices, the orifices of underlying slats being spaced rearwardly of said rods progressively to a greater extent than in the overlying slats, and a series of abutments in number agreeing with the number of said slats in vertically spaced relation on the rear of said rods to progressively engage and raise said slats as said sash is raised.

4. In combination with a window frame having a sill and a vertically sliding sash, a plurality of slats arranged in face-to-face abutment between the lower rail of said sash and said sill in the closed position of said sash, a plurality of rods depending from said sash through said slats and into said sill, said rods being provided with means for progessively raising said slats into vertically spaced relationship as said sash is raised, said means supporting said slats in outwardly and downwardly slanting position when the sash is so raised, and a resilient pad beneath the outer margin of the lowermost slat.

5. In combination with a window frame h ving a sill and a vertically sliding sash, a pin of slats arranged in face-to-face abutment between the lower rail of said sash and said sill in the closed position of said sash, a plurality of rods depending from said sash, stepped abutments on said rods for progressively engaging and raising said slats into Vertically spaced relationship as said sash is raised, and a resilient pad beneath the outer margin of the lowermost slat.

6. In combination with a window frame having a sill and a vertically sliding sash, a plurality of slats arranged in face-to-face abutment between the lower rail of said sash and said sill in the closed position of said sash, said slats having a plurality of matching orifices therein, rods depending from said sash through said orifices, the orifices of underlying slats being spaced rearwardly of said rods progressively to a greater extent than in the overlying slats, a series of abutments in number agreeing with the number of said slats in vertically spaced relation on the rear of said rods to progressively engage and raise said slats as said sash is raised, and a resilient pad beneath the outer margin of the lowermost slat.

EDGAR G. DAVIS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,075,461 Parmenter Mar. 20, 1937 2,196,070 Hovland H Apr. 2, 1940 

